Improvement in horse-powers



A. B. FARHUHAR.

Horse-Power Patented Oct. 5, I875.

m m V N. PHERS, PHOTOUTNOGRAPMER. WASHINGTON a C UNITED STATES PATENTOFFICE.

ARTHUR B. FARQUHAB, OF YORK, PENNSYLVANIA.

IMPROVEMENT IN HORSE-POWERS.

Specification forming part of Letters Patent No. 168,469, dated October5, 1875; application filed September 16, 1875.

To all whom it may concern.-

Be it known that I, ARTHUR B.FARQ,UHAR, of York, in the county of Yorkand State of Pennsylvania, have invented certain new and usefulImprovements in Horse-Powers; and I do hereby declare that the followingis a full, clear, and exact description thereof, which will enableothers skilled in the art to which it pertains to make and use the same,reference being had to the accompanying drawing, and to the letters ofreference marked thereon, which form a part of this specification.

My invention relates to improvements in that class of devices commonlyknown as horse'powers; and the object of my invention is to prevent thedisarrangement of the apparatus, or snapping of the vertical shaft, byreason of the sagging or spring of the floor on which it is supported,caused by the placing thereon or removal therefrom of heavy weights, thenature of which will be fully explained by reference to the accompanyingdrawings.

Figure 1 represents a vertical section, Fig. 2 a plan, and Fig. 3 adetail view, of so much of a horse-power as will illustrate myinvention.

A Arepresent a framework supporting the gearing. B is the maindriving-wheel, the teeth of which gear into a pinion, O, by means ofwhich the pinions D and E are operated, as is well understood. The maindriving-wheel B is provided with an opening or eye, I), in the center ofthe hub, for the reception of the squared or feathered end B of a shaft,B The sides of the opening or eye b, in place of being vertical, arecurved orinclined from the center toward the upper and lower edges ofthe hub of the wheelB, in such a manner that the eye 5 shall only bearagainst the squared or feathered end of the shaft B at the point 12thereby allowing the vertical shaft to have considerable play verticallywithin the eye I), and deviation from a true vertical line withoutinterfering with the operation of the driving-wheel B. The wheel B atits outer edge is provided with a smooth rim or surface, I), which restsupon friction-pulleys F, shown at Fig. 3, and by dotted lines at Fig. 2,mounted and revolving on suitable bearings or supports, while it isretained in its proper position by means of the lower portion of the hubb being provided with a projecting rim, 1), adapted to be receivedwithin a grooved channel, 11 in a step-box, b.

By thus constructing horse-powers with the vertical shaft or king-postBpassing through an opening or eye,-b, having inclined sides,as shown,and the driving-wheel B being supported on friction-pulleys Findependently of the shaft or king-post B and retained centrally incorrect position by the lower end of its hub passing into a groovedstep-box, b the danger of disarrangement of the working of the gears, aswell as the liability to fracture of the shaftorking-bolt B is greatlydiminished, if not totally avoided.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

1. A horse-power constructed with a vertical shaft or king-post, B theupper end B of which is squared or feathered, and works loosely in theeye I) of a driving-wheel, B, the sides of such eye b being inclined, orcurved from the upper and lower edges of the hub toward the center,substantially as and for the purpose described.

2. A horse-power constructed with a main or driving wheel, B, providedwith an eye, I), mounted looselyfion a vertical shaft or kingpost, B andsupported on friction-pulleys F, substantially as shown and described.

3. A horse-power constructed with a main or driving-wheel, B, mountedloosely on a vertical shaft or king-post, B supported onfriction-pulleys F and retained centrally in position by means of itshub 12 and a step-box, b substantially as shown and described.

In testimony that I claim the foregoing as my own I affix my signaturein presence of two witnesses.

A. B. FARQUHAR. Witnesses:

WM. BEITZEL, J. KIRK WHITE.

